distal radioulnar joint

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  • The alignment of the distal radioulnar joint is also important as this can be a source of a pain and loss of rotation after final healing and maximum recovery.
  • The major exception is when the joint between these bones, the distal radioulnar joint (or DRUJ), is unstable.
  • The TFCC is a fibrous structure covering both the radiocarpal and distal radioulnar joint.
  • The distal radioulnar joint is a pivot joint located between the bones of the forearm, the radius and ulna.
  • Together with the proximal radioulnar joint, the distal radioulnar joint permits pronation and supination.
  • The RUL's are the principal stabilizers of the distal radioulnar joint (DRUJ).
  • However, movements at the wrist can not be properly described without including movements in the distal radioulnar joint in which the rotary actions of supination and pronation occur and this joint is therefore normally regarded as part of the wrist.
  • The Galeazzi fracture is a fracture of the radius with dislocation of the distal radioulnar joint.
  • Investigation of a potential distal radial fracture includes assessment of the angle of the joint surface on lateral X-ray, the loss of length of the radius from the collapse of the fracture, and congruency of the distal radioulnar joint.
  • Displaced fractures of the ulnar styloid base associated with a distal radius fracture result in instability of the distal radioulnar joint and resulting loss of forearm rotation (Figure 6).
  • The articular surface for the ulna is called the ulnar notch (sigmoid cavity) of the radius; it is in the distal radius, and is narrow, concave, smooth, and articulates with the head of the ulna forming the distal radioulnar joint.